Door Alarm Research Articles

Prototype of Automatic Door and Fire Alarm System Based on IoT

This research discusses the development of a prototype of an automatic door and fire alarm system based on the Internet of Things (IoT) utilizing IR sensors to detect people, servo motors to automate door opening, flame detectors for fire detection, MQ-2 sensors for smoke detection, and Telegram as a notification medium. The integration of these technologies aims to enhance security and automation in home or office environments. IR sensors are used to detect people approaching the door, while servo motors provide a solution for door automation. Flame detectors and MQ-2 are employed to detect potential fires by issuing early warnings. This system communicates through the Telegram application to notify users. Testing conducted indicates that IR sensors can detect the presence of people up to a distance of 5cm to activate the micro servo opening the door. The flame detector effectively detects fire up to a distance of 30cm, while the MQ-2 sensor detects smoke up to a distance of 20cm; both generate output signals to activate the micro servo, LED, and buzzer for fire alarms, as well as sending notifications via Telegram to the building owner. With this approach, it is hoped to create an effective, efficient, and reliable system to enhance security and response to emergency situations.

Implementasi Sistem Kendali dan Monitoring Keamanan Pintu Berbasis IoT Menggunakan Perangkat Mobile

One of the important things in the management of the lecture building is the need for a security system to lock the door. This is necessary to avoid the possibility of theft and negligence in opening or closing the door at certain hours. The purpose of this study is to implement an Internet of Things-based door security control and monitoring system using a mobile device. This system is a substitute for door security that uses conventional locks. The system can be accessed by setting the operating time from 07.00-17.00. If there is a change in operational time, the admin can reset the operational time. Before the operating time ends, the speaker gives an automatic door lock warning, and the door is automatically locked and cannot be accessed. In addition, the system is equipped with a door alarm using a buzzer and a notification is sent via the application when the door is forcibly opened. The door control process starts by reading the operating time and the status of the door lock solenoid. If the initial status of the door lock solenoid is locked, the RFID tag sends data to the RFID reader, then the door lock solenoid opens. The test results show that the response time for opening and locking doors using RFID is 26,22 seconds and 22,25 seconds. The response time to open and lock the door using the application is 5,03 seconds and 5,34 seconds, respectively. The average response time when the door is forcibly opened is 14,83 seconds

Measurement of a spring force constant using sound, door alarm, and soundcard oscilloscope

The increasing or decreasing magnetic field of a permanent magnet—attached to the bottom of the mass hanger of a spring-mass oscillator—would turn ON or OFF, respectively, the switch of a door alarm system. The sound pulses—now voltage pulses as a result of conversion by the built-in microphone of a PC—were recorded by the PC-based oscilloscope as a function of time and on the basis of these data, the period of oscillations was obtained; thus, the spring constant. We obtained (29.6 ± 0.1) N m−1 which is a good match to the accepted value of 30.0 N m−1.

Sound-based measurement of g using a door alarm and a smartphone: listening to the simple pendulum

Mainly, a door alarm system is used to measure gravitational acceleration. The magnetic switch component of the door alarm is turned on or off as the magnetic pendulum bob approaches or recedes from it. The audio signals is recorded by a smartphone as a time series, permitting the measurement of the period of oscillations and thus the determination of the gravitational acceleration. A satisfactory match between the experimental and the locally accepted value is attained. The setup is also an apparent audio-based demonstration of the periodicity of the motion of the simple pendulum.

Sistem Keamanan Pintu Rumah Berbasis Android

As an example of using the Arduino Uno microcontroller which is used as a door security system controller using a smartphone. Many types of security are offered and used, such as alarms that use sound as an indicator which is standard security from an alarm, this alarm sounds through a speaker (speaker) that is installed on a door that serves to provide information to homeowners and the surrounding environment that the alarm is active. In this study, using an Android smartphone as a tool to operate the door and activate the alarm automatically at the door. For the research that the authors make this will be different from the previous research. Where the tool designed using micro controller (Arduino Uno) is used to turn on the buzzer as a door alarm automatically and can open and close the door, which will be done on an Android smartphone using bluetooth media. Bluetooth is wireless communication that is used as a communication link between an Android smartphone and Arduino Uno.

DESIGN OF VOICE CONTROL SYSTEM AN ANDROID AND ARDUINO-ASSISTED AS A COMPONENT ACTIVATION ON VEHICLES

The purpose of this research was to design an Android and Arduino-assisted voice control system as a component activation on vehicles. The method in this study are; making initial design concepts, procuring tools and materials, manufacturing products, testing products, and analyzing product performance. The conclusion of this research is that this system has gone through the application design stage on android using MIT App Inventor 2 and making the program using Arduino IDE, and the last stage is product testing. The test results show that the application installed on an android smartphone is able to work properly. The design of the program on a microcontroller using Arduino was also successfully compiled. This voice control vehicle module achieves connectivity capability with bluetooth as far as 14 meters. Accuracy of voice commands in the range of 73-95%, this result was obtained using clear voice articulation according to acceptance in google speech and using good internet network connectivity. Able to activate and turn off vehicle door locks, hazard, alarm, and engine.

Surveillance system with motion and face detection using histograms of oriented gradients

<span>With the rapidly increasing crime rate in recent years, community safety issues aroused a wide concern among public community. Various security technologies had been invented and carried out, for example password door lock, alarm system, and closed-circuit televisions (CCTVs). Although the installation of CCTVs is common in most premises, they require extensive man power to manually monitor the videos. Moreover, the reliability of human operator greatly deteriorates when they are in fatigue condition. In view of this, our project aims to develop an automated computer vision based surveillance system. Unlike ordinary CCTV system that requires human operator to manually observe and detect intruder, a computer vision based surveillance system automatically monitor the security of premises and trigger actions once an intrusion is detected. Basically, it is a simple surveillance camera system that will be setup at the entrance of the house. The reliability is being enhanced by applying the motion detection and face recognition algorithm, using histogram of oriented gradients that could detect the existence of people at the main entrance and try to validate the user. Apart from recognizing the user, the propose system also support mobile interaction whereby user can monitor the camera, activate alarm, and even received notification when a stranger was being detected at the entrance of the house. By including such functionalities, proposed system had highly surpassed the existing surveillance system by not only support monitoring, but also try to recognize the people and inform the user at the exact moment when stranger detected, so that user could take immediate action about it, for example activating the alarm or report to police. The project was executed with expected outcome and objectives had been accomplished.</span>

The Effect of a Door Alarm on Operating Room Traffic During Total Joint Arthroplasty.

Operating room traffic has been implicated in several studies to contribute to the risk of surgical site infections and periprosthetic joint infections. The purpose of this study was to evaluate the effect of a door alarm on operating room traffic during total joint arthroplasty. This prospective cohort study evaluated 100 consecutive primary total hip and knee arthroplasty surgeries performed by a single surgeon. An inconspicuous electronic door counter was placed on the substerile operating room door. Door openings and time left ajar were recorded. After 50 cases, an audible alarm was placed on the substerile operating room door that sounded continuously when the door was ajar. Door-opening data were then recorded for an additional 50 cases. There was a significant difference in the overall mean door openings per minute (P<.001) between the period with no alarm (0.53±0.1) and with an alarm (0.42±0.1). This effect slowly decreased over the time of the intervention, with door openings per minute increasing by a factor of 1.01. The percentage of time the door was left ajar per case also decreased significantly (P<.001) with the alarm (6.63%±1.6%) compared with no alarm (8.65%±1.5%). This study indicates that the use of a door alarm can decrease door openings and potentially the risk for surgical site infection. However, the effect is subject to tolerance and may not result in the elimination of unnecessary operating room traffic long term. [Orthopedics. 2017; 40(6):e1081-e1085.].

Animal-Assisted Interventions in Audiology

Animal-Assisted Interventions in Audiology

Acousto-Optic Double Control Automatic Alarm and Lighting Circuit Design

In this paper, the design and construction of the acousto-optic double control automatic alarm and lighting circuit. Through analyzing the existing solutions, using an infrared tube, electret sensor as well as the main device, by 555 multivibrator principle of design and production. This system sound control circuit, control circuit and the infrared light control circuit, and the door alarm circuit, and has the function of alarm lighting using infrared good concealment, the alarm can be used in day and night, at the same time controlling light lamp has the effect of energy saving.

Hardware and Logic Implementation of Multiple Alarm System for GSM BTS Rooms

Cellular communication becomes the major mode of communication in present century. With the development of this phase of communication the globalization process is also in its peak of speed. The development of cellular communication is largely depending on the improvement and stability of Base Transceiver Station (BTS) room. So for the purpose of the development of cellular communication a large numbered BTS rooms are installed throughout the world. To ensure proper support from BTS rooms there must be a security system to avoid any unnecessary vulnerability. Therefore multiple alarm system is designed to secure the BTS rooms from any undesired circumstances. This system is designed with a PIC Microcontroller as a main controller and a several sensors are interfaced with it to provide high temperature alarm, smoke alarm, door alarm and water alarm. All these alarms are interfaced with the alarm box in the BTS room which provides the current status directly to Network Management Centre (NMC) of a Global System for Mobile (GSM) communication network.

Technology for Elderly with Memory Impairment and Wandering Risk

Objective:The main objective of this project was to studyhow to secure the wandering of elderly persons diagnosed with dementia caused by Alzheimer’s disease by using healthcare technologies. Methods:The study was carried out during a three-year period (2008-2011) in the region of South Ostrobothnia, Finland. Thirty-two elderly persons living at home and diagnosed with Alzheimer’s disease participated in the study. The ages of the intervention group ranged from 66 to 90 years; the average age was 81 years. A total of 63 different home care devices including 24 location based technologies were tested during the intervention.The choice of technology used was based on the individual needs of the elderly person. Results:Participants with mild stage memory impairment were able to use and benefit from the technology installed during the intervention to live more independently.The most useful devices were those that operated within the home. Nine of ten users of door alarm systems, five of nine users of GPS systems and all users of GSM systems were satisfied with the technologies. Conclusions:Location based alarm and access control technology can have a positive impact on the lives of elderly persons suffering from dementia. When chosen appropriately, technology can help to reduce or eliminate the wandering often associated with dementia.Regardless of the technology used, it should be installed when the elderly person is at the early stages of dementia; at later stages of the disease it is usually impossible for the elderly to adequately adopt the device.

La cadena de frío vacunal en un departamento de salud de la Comunidad Valenciana

Objective To evaluate the cold chain in the vaccination points of a health department in the autonomous region of Valencia, including training of the staff responsible for the cold chain. Method We performed a crosssectional study to review all the vaccination points (n=50, with 68 refrigerators) of a health department in the autonomous region of Valencia. A structured questionnaire was used to gather information on the characteristics of the vaccination center, the staff responsible for the cold chain, the infrastructure and control of the elements composing the cold chain, the procedures used in vaccine conservation and handling, and knowledge of the staff. Results The response rate was 100%. Most of the refrigerators were domestic refrigerators without alarm systems to alert staff to technical failure or electrical cuts (76.7%), open door alarm (98.5%), external thermometer (92.6%), automatic defrosting facilities (76.5%), internal temperature sensors or connection to emergency circuits (85.3%). Temperatures were mostly in the correct range (83.9%) and the vaccines were correctly located (88.2%). At least one staff member was responsible for the vaccines in all centers. Food was found in 33.8% of the refrigerators, vaccines were conserved on the vaccination table on the day of vaccination in 32.4%, and the temperature chart was not recorded daily in 75%. Conclusion The appropriate temperature was maintained in five out of every six refrigerators. However, the vaccine infrastructure in primary care centers, as well as training of the staff responsible for the cold chain, should be improved.

The Effectiveness of an Electronic Security Management System in a Privately Owned Apartment Complex

Poisson and negative binomial regression methods are used to analyze the monthly time series data to determine the effects of introducing an integrated security management system including closed-circuit television (CCTV), door alarm monitoring, proximity card access, and emergency call boxes to a large privately-owned complex of apartment buildings in New York City. Crime rates in a control apartment complex under the same ownership, and in the police precinct in which the 2 complexes are located, serve as controls.

Penetrating Physical Security:The Anatomy Of Physical Security SystemsAnd Corresponding Defenses

This paper describes how physical security systems and the corresponding networks that the systems run on form a vital component of infrastructure security. The physical security world is embracing Ethernet at a tremendous pace, and yet there has not been much focus on the security aspects of different physical security systems. This paper analyzes the security posture of physical security systems and presents the corresponding defense mechanisms. First, the anatomy for the most common physical security systems; the building control and automation system (system which controls heating, ventilation, life-safety, etc in a building), the video surveillance system (video monitoring, video storage, video access etc) and the access control system (system which controls and monitors physical entry into or exit from a building such door entry, door alarm etc) are presented. The various device components used in each of these systems, the protocols that they employ for communication, and finally layout their typical deployment network architecture are documented. The paper then presents a detailed analysis of the defense posture of the systems using well known attack techniques and corresponding tools. The paper then presents findings, and analyzes the underlying causes of the corresponding vulnerabilities and recommends the best practice counter measures to mitigate the vulnerabilities found during the analysis.

Self-Generation Door Alarm System using Impact Induced Piezoelectric Vibration

Self-Generation Door Alarm System using Impact Induced Piezoelectric Vibration

Door alarm and interlock system at the Los Alamos tandem accelerator facility

Like most accelerator facilities, the Los Alamos tandem accelerator facility was designed to provide adequate radiation shielding to personnel. To permit maximum use of the facility during accelerator operation, a door alarm and interlock system was designed to control access to areas of possible radiation. The system provides a programmed method of selecting various control conditions for entrances to radiation areas, depending upon the amount of radiation in the area and the amount of control desired. This enables personnel to work safely in given areas while experiments are in progress in other areas.

Special devices for the hearing-handicapped patient.

THE HARD-OF-HEARING patient often has communication problems that are not solved by the use of a hearing aid or by lipreading. Some of these problems involve the use of the telephone, radio, and television, and the inability to hear the door chime, telephone bell, and alarm clock. The solution to these problems can be frustrating not only to the patient but also to the otologist and audiologist whom he consults regarding them. The purpose of this paper is to familiarize the reader with some of the instruments that have been developed to solve these problems. All are available either through the telephone company business office or the patient's own hearing aid dispenser. Telephone Communication The telephone represents a major avenue of communication and one that offers the hard-of-hearing person considerable difficulty. Modern hearing aids often provide a telephone switch (Fig 1). Moving the switch turns off the aid's microphone and

Blood Bank Refrigerator Alarms: Improving Coverage and Preventing Trouble

Three alarm systems, one warning of temperatures above and below the acceptable range for blood preservation, the other two designed to prevent temperature rises due to unclosed refrigerator doors and power supply failure, are described and diagrammed. The temperature alarm gives its audible and visual signal in a constantly manned, distant area, identifies the refrigerator which failed, automatically signals the restoration of proper temperature after repairs, and is independent of building electric power supply. The door alarm is automatically turned on and off so it is operating only when the blood bank staff is absent. The power supply interruption alarm anticipates a temperature rise due to power failure by as much as an hour. The installation cost $160.